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A. F. MARTEL. Devices for'Preventing Collisions with Disabled Trains.

No. 229,048. Patented June 22, 1880.

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UNITED STATES PATENT OFFICE.

ADELA-RD F. MARTEL, OF MONTREAL, QUEBEC, CANADA.

DEVICE FOR PREVENTING COLLISIONS WITH DISABLED TRAINS.

SPECIFICATION formingpart of Letters Patent No. 229,048, dated June 22,1880.

Application filed April 2, 1880.

To all whom it may concern:

Be it known that I, ADELARD FRANK MAR- TEL, of the city and district ofMontreal, in the Province of Quebec, Canada, have invented certain newand useful Improvements on Devices to Prevent Collision with DisabledTrains on Railways; and I do hereby declare that the following is afull, clear, and exact description of the same.

The object of this invention is to signal danger between stations fromone train to an approaching train to prevent collision; and it consistsin providing a car or engine-cab with a horizontal rock-shaft havingextremities bent at a right angle to strike a movable arm of postsplaced at intervals between stations, whereby the said shaft on arunning train will be rocked to operate a bell or other mechanism whenthe arm is adjusted horizontally toward the line of railway, and thusalarm the engine-driver.

The drawing represents a sectional elevation of my devices to operate abell in an enginecab.

A represents a number of posts placed at intervals along on one side ofthe line of railway at a suitable distance from the rails, each posthaving an arm, B, pivoted at the top in such a manner as to beadjustable horizontally towald the railway-track, and movable verticallyor parallel to the rails when not in use, for the purpose hereindescribed.

0 is the interior of a car or engine-cab through which passeshorizontally under the roof a rock-shaft, I), having extremities bent toa right angle and extending so as to come into contact with the arm Bwhen adjusted for that purpose.

Suitable connection is made with a crank or other contrivance on therock-shaft and a whistle, valve, brake mechanism, or bell, E, so thatwhen the bent extremity of the shaft comes in contact with the arm B theshaft will be rocked and the bell or whistle sounded (No model.)

to notify the engine-driver to look out for danger ahead, or by theapplication of the brakes stop the train.

F is asprin g attached to a crank on the shaft D to cause it, after thealarm is sounded, to resume its normal position.

The use of the invention is as follows: WVhen a train is stopped, bydisablement or other cause, on the main line, a'man is sent forward andrearward to the first or second post, and he, ascending the posts by thesteps Gr, unlocks the arm B and adjusts it horizontally. The bentextremity of shaft 1) of an approaching train will strike the arm andthus cause an alarm to be sounded or the moving train stopped, aspreviously described.

I am aware of means for signaling adapted for railways not liable to beimpeded by snow obstructions, consisting of posts having arms connectedby rods or cables to operate a station-signal ahead by means of atripping-lever on an engine, and also of an arm pivoted horizontally ontop of a car to strike the projecting arm of a post, and such inventionsare disclaimed by me.

I claim as my invention As an improved means of signaling danger betweenstations to running trains, a horizontal rock-shaft passing transverselythrough a car or engine-cab, said shaft having projecting extremitiesbent to a right angle, in combination with posts A, placed at shortintervals between stations along the line of railway, each of said postshaving an independent arm, B, at the top, movable into position toengage with the said bent extremities, which yield and rock the shaft,whereby a hell or other mechanism connected therewith is operated togive alarm from one train to another, as set forth.

A. F. MARTEL.

Witnesses:

HENRY. GRIST, FRED. J. Ross.

